Searched and didn't come up with many results, and certainly not in one place so thought I'd ask around about different add-on spoiler options that fit over the factory spoiler.
I know of:
Mines
Powertrix
https://www.powertrix.com/component/...t/view/49/179#
Carbon Signal
What others am I missing or not aware of. Surely there must be several options at least. A picture and a link would be great. Even better post a price if you know it.